Adds Display name to profile responses

Author: johnkors

source/src/Slackbot.Net.SlackClients.Http/Models/Responses/UserProfile/UserProfileResponse.cs

@@ -14,6 +14,9 @@ public class GetUserProfile
 
     public string Real_Name{ get; set; }
     public string Real_Name_Normalized{ get; set; }
+    
+    public string Display_Name { get; set; }
+    public string Display_Name_Normalized { get; set; }
 
     public string Phone{ get; set; }
     public string Email{ get; set; }

source/src/Slackbot.Net.SlackClients.Http/Models/Responses/UsersList/UsersListResponse.cs

@@ -35,6 +35,8 @@ public class UserProfile : ProfileIcons
     public string First_Name { get; set; }
     public string Last_Name { get; set; }
     public string Real_Name { get; set; }
+    public string Display_Name { get; set; }
+    public string Display_Name_Normalized { get; set; }
     public string Email { get; set; }
     public string Skype { get; set; }
     public string Status_Emoji { get; set; }